For uncompromising quality in precision pH measurements, the Model H-PH-1 combination electrode measures the pH potential against a reference, covering a pH range of 0 to 14. With a stem diameter of only 3mm and a length of 180mm, this pH electrode is ideal for measuring small sample volumes contained within 5mm OD, or larger, NMR tubes, as it requires only 7mm immersion depth for accurate measurements. The electrode includes a standard S7 connector. Additional quantities of electrolyte solutions are sold separately.

Please Note: pH electrodes do not come with connecting cables. These need to be ordered separately.

For uncompromised quality in precision pH measurements, there are two electrodes to choose from, depending on your sample matrix. Model H-PH-1 is specific for sample measurements beween 0 to 14 pH, model H-PH-1P is specific for samples containing proteins, with a range between 2 to 11 pH. Both have a standard S7 connector end. Length of electrode portion is 180 mm long and 3 mm wide. For use with 5mm and 10 mm NMR tubes.

For Silicon and Boron NMR, we recommend the use of either TL-5-TUBEKIT for 3-5 mm probes or TL-10-TUBEKIT for 10 mm probes. Kit is designed for either Varian, Bruker, or JEOL spinners as a holding device for the fluoropolymer liner. Probe only "sees" fluoropolymer, allowing for excellent 29Si and 11B spectra.

Our NMR Sample Tube Washing Unit is made of borosilicate glass. It is a "must" for anyone confronted with the tedious task of cleaning NMR sample tubes. Wash, rinse and dry your NMR tubes - all in one single step.

All glass and fluoropolymer design cleans five NMR tubes of the same or various lengths and diameters. Flouropolymer adapter has five positions with flexible 1/8" fluoropolymer tubing supplied in 9" lengths that can be cut to desired height. The NMR tube is placed over the tubing and seats in the adapter, leaving a small space between the end of the fluoropolymer tubing and the inside bottom of the NMR tube. With the stopcock in the closed position, the reservoir is connected to a low vacuum source. Cleaning solvent is added into the adapter followed by air drying to complete the process in seconds. Flexible tubing and adapter design reduces breakage. Stopcock permits easy draining of solvent. Hose connection is 10mm at the largest serration.

Ideal for sample storage up to 0.8ml. Can be flame sealed or simply use our 5mm standard or fluoropolymer tube cap closure. Unsealed Minipuls® are supplied 41/8" high with one open end. Sold in lots of 50.

These syringes are latex free, contain no rubber, no silicone oil or strene. Manufactured only from laboratory grade polypropylene and polyethylene and incorporate a positive safety stop to prevent accidental spills. Packed in lots of 100.

Two sizes are available; 3.5 ml (standard) and 1.5 ml (semi-micro). All cuvettes have a 10 mm path length and are 45 mm high. Internal width of the semi-micro size is 4 mm. We also have cuvette caps made from polyethylene which are easy to insert and remove. The caps seal liquid tight, suitable for mixing and storage. Sold in lots of 500.

This unique, lightweight, efficient distillation column packing was developed in our chemical R & D laboratories in the process of separation of H2O from D2O (heavy water) by distillation. Being chemically inert, with large contact surface area, it proved to be an excellent distillation column packing in the process of upgrading and separation by distillation of our deuterated solvents. We estimate that 100g of 5mm o.d. individual Multi-Channel™ units consist of 750 pieces, occupies about 950 cm3 in volume and offers about 4000 cm2 in total surface area.

These 12" lengths of PTFE Syringe tubing offer an excellent means to access the bottom of small inner diameter NMR tubes, allowing void-free filling with viscous solvents such as DMSO-d6 or deuterium oxide.